040 KR6480 quenching agent
[Introduction] KR6480 quenching agent is a mature environmentally-friendly water-soluble quenching agent. After quenching, the workpiece has high hardness and uniformity, and can reduce quenching deformation and prevent water quenching. By adjusting the concentration of the quenching agent, different cooling rates can be obtained. The medium has excellent rust and corrosion resistance to the workpiece, the quenching tank and the cooling circulation system. It is not easy to age, deteriorate, and has a long service life. No fumes, no burning, no fire hazard, and clean production environment.
The use concentration is 5% to 20%, and the use temperature is 10 to 45 °C.
[Typical physical and chemical properties]
Appearance: translucent viscous liquid
pH: 8 ~ 1l
ã€The main purpose】
1Applicable to medium and high frequency induction heating quenching of workpieces such as gears and camshafts.
2 Applicable furnace type: mesh belt furnace, stepping furnace, casting chain furnace, push rod furnace, drum furnace, well furnace, rotary hearth furnace.
3 can effectively solve the problem of quenching cracking and oil quenching of workpiece water (salt water, alkaline water) such as 35, 45, 35CrMo, 40Cr, 40MnB, 42CrMo.
4 Especially suitable for the whole or continuous quenching of workpieces such as standard parts, shaft parts, forgings, springs and hardware tools.
041 KR6480T quenching agent
[Introduction] KR6480T quenching agent is a mature environmentally friendly water-soluble smoldering agent mainly used in the spring industry. It is used for quenching treatment of spring steel parts, which can effectively improve the working environment of heat treatment and improve the quenching quality of workpieces.
The faster high temperature cooling rate enables high and uniform surface hardness and sufficient hardened layer depth after quenching the workpiece. The slower low temperature and low speed can effectively prevent the workpiece from cracking after quenching. Different cooling rates can be obtained by adjusting the concentration of the quenching liquid. The medium has excellent rust and corrosion resistance to the workpiece, the quenching tank and the cooling circulation system. It is not easy to age, deteriorate, and has a long service life. No fumes, no burning, no fire hazard, and clean production environment.
The concentration is usually 5% to 20%, and the use temperature is 10 to 50 °C.
[Typical physical and chemical properties]
Appearance: translucent viscous liquid
pH: 8-11
ã€The main purpose】
1 It is suitable for quenching treatment of spring steel parts such as 60Si2Mn, 55CrSi, 65Mn, 50CrV, 55SiMnVB, 60Cr2SiVA.
2 Applicable furnace type: mesh belt furnace, stepping furnace, well type furnace, rotary hearth furnace, trolley furnace, induction heating furnace.
042 KR6680 Quenching Agent
[Introduction] KR6680 quenching agent is a mature environmentally-friendly water-soluble quenching agent. Its high-temperature cooling rate is equivalent to that of KR66480, and the low-temperature cooling rate is closer to the rapid quenching oil. It can replace the quenching oil for the quenching of low-carbon alloy steel workpieces. .
The quenching agent vapor film has a short stage and a high temperature and a fast cooling rate, so that the workpiece can obtain a high and uniform quenching hardness. The low temperature and low cooling rate can reduce the quenching deformation of the workpiece and prevent cracking. The higher the concentration of the quenching liquid, the slower the cooling rate. The medium has excellent rust and corrosion resistance to the workpiece, the quenching tank and the cooling circulation system. It is not easy to age, deteriorate, and has a long service life. No fumes, no burning, no fire hazard, and clean production environment.
The concentration is 5% to 20%, and the use temperature is 10 to 50 °C.
[Typical physical and chemical properties]
Appearance: translucent viscous liquid
pH: 8-11
ã€The main purpose】
1 It is suitable for quenching and quenching of alloy steels such as 40Cr, 42CrMo, 42CrMnMo and 40CrNiMo.
Quenching of 2GCr15 and other bearing steel parts.
Carburizing and quenching of steels such as 320Cr, 20CrMo, and 20CrMnTi.
4 Suitable for quenching of spring steel parts such as 60Si2Mn, 65Mn, 50CrV, 55SiMnVB.
5 It is suitable for quenching of alloy structural steel parts such as standard parts, chains, leaf springs, spring steel wires, rolling bearings and gear shafts.
6 Applicable furnace type: mesh belt furnace, stepping furnace, casting chain furnace, push rod furnace, drum furnace, well furnace, rotary hearth furnace.
043 KR68S0 quenching agent
[Introduction] KR6380 quenching agent is used. After quenching the workpiece, the hardness is high and uniform, and the quenching deformation can be reduced to prevent water quenching. By adjusting the concentration of the quenching agent, different cooling rates can be obtained. The medium has excellent rust and corrosion resistance to the workpiece, the quenching tank and the cooling circulation system. It is not easy to age, deteriorate, and has a long service life. No fumes, no burning, no fire hazard, and clean production environment.
The concentration is usually 5% to 20%, and the use temperature is 10 to 45 °C.
[Typical physical and chemical properties]
Appearance: translucent viscous liquid
pH: 8-11
ã€The main purpose】
1 is particularly suitable for the solution treatment process of aluminum alloys.
2 Applicable furnace type: solution treatment furnace.
044 polyethylene glycol quenching agent
[Introduction] This medium is a film-forming quenching medium that prevents cracking of quenched parts. The formed film is easy to clean. However, the medium must be subjected to media concentration and temperature control during use.
Quenching agent composition: The optimum concentration (mass fraction) during induction hardening is 5% to 10%, and the concentration (mass fraction) at the time of overall quenching is 15% to 20%.
[Main use] Since the medium is not as good as the polyether quenching medium in performance, it has not been used in Europe and the United States.
045 R synthetic quenching agent
[Introduction] Romanian CMC type R synthetic quenching agent, sodium carboxymethyl cellulose (CMC) is a water-soluble cellulose ether, which can change the viscosity of most commonly used water liquid preparations between 5 and 5000 cP.
CMC is obtained by reacting monochloroacetic acid with alkali cellulose. Alkali cellulose itself is produced by the reaction of cellulose with sodium hydroxide. The step of alkali cellulose is necessary to simplify the reaction between the etherifying agent and the cellulose chain. Degree of substitution (DS) and degree of polymerization (DP) are typical indicators for each grade of NaCMC.
[Quenching and cooling characteristics] A stainless steel sample of Φ25 mm × 40 mm was used, and the results measured under stirring conditions are shown in Table 2-8.
[Main use] R series hydroxymethyl cellulose is used in production and is equipped with a stirring device, which has achieved good results.
046 (hydroxy)methyl (CMC) cellulose aqueous solution
ã€Introduction】 Hydroxymethyl cellulose (CMC) is a water-soluble polymer structure of cellulose ether, odorless, odorless, non-toxic, white or yellowish granular flocculent powder, transparent to water is transparent Body, with good milky, dispersing, suspending and bonding, known as "industrial MSG".
Methylcellulose adds a very small amount of CMC to the water: it blocks the conduction of heat and delays the cooling of the solution. Different degrees of coincidence, the prepared methylcellulose aqueous solution has different viscosity and different cooling characteristics.
The methyl cellulose aqueous solution produced by Japan's first type pharmaceutical company has a decreasing cooling rate with increasing temperature at normal temperature.
[Quenching and cooling characteristics] A methyl cellulose aqueous solution having a concentration (mass fraction) of 0.125% has a cooling effect similar to that of a PVA having a concentration (mass fraction) of 0.5%, and a CMC solution having a concentration (mass fraction) of 0.5%. Cooling capacity is close to quenching
Fire oil.
[Main use] It can replace quenching oil for quenching and cooling of alloy structural steel.
047 (hydroxy)ethyl (HEC) cellulose aqueous solution
[Introduction] Hydroxyethyl cellulose (HEC) aqueous solution is odorless and non-toxic. With the increase of hydroxyethyl cellulose content, the cooling capacity is gradually weakened, which shows that the membranous boiling period increases, and the bubble boiling cooling rate becomes smaller. The medium has a strong cooling capacity. When the concentration is 1%, it has the cooling capacity equivalent to oil; as the temperature of the medium increases, the film boiling period is lengthened, and the bubble boiling cooling rate is lowered.
The use temperature is ≤ 50 ° C, and the liquid temperature range must be specified according to local climatic conditions, workpiece requirements and quenching equipment.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-9.
[Main use] It can replace quenching oil for quenching and cooling of alloy structural steel.
[Storage] Store in a cool dry place, sealed and stored for a long time.
048 hydroxyethyl cellulose-sodium chloride quenching agent
[Introduction] Indirect control can be performed by measuring the viscosity value during the production process. The medium has a newly formulated viscosity of 12.99 °E.
Medium composition (mass fraction): 1% hydroxyethyl cellulose, 10% sodium chloride, and the balance is water.
[Quenching and Cooling Characteristics] The medium boiling in the temperature range of 400 to 500 °C is slower than the transition boiling and boiling of the 20# engine oil. The quenching and cooling characteristics of this water-based oil medium are ideal, but the mechanism has not yet been uncovered. The addition of mineral oil does not increase the boiling point. It has been suggested that since the membrane boiling undergoes a transitional boiling and is directly converted into natural convection, the medium can be used to obtain the desired slow cooling process.
[Main use] This medium can solve the problem of large oil quenching deformation. For example, a 65mm steel circular blade cutter of 100mm×0.8mm has an asymmetrical keyway for quenching treatment, and the deformation amount of 0.8mm from oil quenching is reduced to 0.06 to 0.11mm, and the quenching hardness is >61HRC.
049 triethanolamine aqueous solution
ã€Introduction】 Triethanolamine can be fully dissolved in water. It should not be rusted after quenching. It will not be chemically affected with inorganic salts when quenched in salt furnace. However, the medium is more expensive and the price is higher than that of polyvinyl alcohol. Deuterium gas can occur when cooling. Therefore, its application is limited.
The concentration of triethanolamine aqueous solution (mass fraction) is generally from 1% to 12%, and the typical use concentration is from 5% to 8%.
[Quenching and cooling characteristics] The maximum cooling rate of the 1% triethanolamine aqueous medium is 220 ° C / s, and the temperature is 550 ° C. The average cooling rate in the temperature range of 650-550 °C is 202 ° C / s; the average cooling rate in the temperature range of 300 ~ 200 ° C is 90 ° C / s.
The maximum cooling rate of the 12% triethanolamine aqueous medium is 220 ° C / s, and the temperature is 380 ° C. The average cooling rate in the temperature range of 650-550 °C is 35 ° C / s; the average cooling rate in the temperature range of 300 ~ 200 ° C is 65 ° C / s.
The quenching agent has a cooling capacity between water and oil in the low temperature region. Cooling is still too fast; when the concentration (mass fraction) is 12%. The cooling rate will be significantly slower.
ã€The main purpose】
1 can be used for quenching of medium carbon steel. The triethanolamine solution with a content of 12% has a significantly slower cooling rate, which can effectively prevent the quenching cracking of 45 steel.
2 Triethanolamine solution with a content of 5% to 8% can be used for high-frequency heating spray quenching of 45, 40Cr, 40Mn and other steel parts. The liquid temperature is generally controlled at 20-55 °C.
050 polyamide polyethylene glycol aqueous solution
[Introduction] Polyamide polyethylene glycol (PAM) is prepared by copolymerization of amide and ethylene glycol. The stability of the aqueous medium is better than that of other organic polymer quenching media. When the concentration (mass fraction) exceeds 15%, the quenching probability can be significantly reduced.
ã€The main purpose】
1 can be used for direct quenching, forging residual heat quenching and induction jet quenching.
2 is especially suitable for quenching large workpieces.
051 polyacrylamide aqueous solution
[Introduction] Sodium nitrite is added to the polyacrylamide (PAN) aqueous solution. In addition to the anti-pound effect, it also acts to destroy the membrane, thereby increasing the cooling rate in the quenching critical region. Using 1%~2% PAN+NaCl aqueous solution, the shaft diameter can be completely hardened after quenching. After high temperature tempering, the mechanical properties of the core and the surface are basically the same, the fatigue strength limit is 25% higher than oil quenching, and the economic benefit good.
The quenching agent has two kinds of aqueous solutions: the aqueous solution of No. 1 has a molecular weight of more than 2.5 million, the aqueous solution of No. 2 has a molecular weight of 1.5 million to 2.5 million, and the effective content is 7%, which is completely soluble in water. A rust preventive preservative is also added to the aqueous solution.
[Main use] The crankshaft (shaft diameter φ100mm) of a truck in an automobile factory in the former Soviet Union used oil quenching in the past, and later changed to use this medium to improve hardenability and prevent quenching deformation and cracking.
[Precautions for use] Sodium nitrite is toxic and produces carcinogens. Other non-toxic rust inhibitors should be used instead.
052 50 Quenching Agent
[Introduction] No. 50 quenching agent is a colorless, odorless, non-toxic liquid. The media can be diluted to different concentrations before use for quenching and cooling of different materials. No quenching, no corrosion, and sufficient source of raw materials during quenching. It is not necessary to clean after quenching, and the cooling ability of 0.5% polyacrylamide and 0.4% polyvinyl alcohol aqueous medium is close.
Quenching agent formula (mass fraction): polyacrylamide 50%, sodium nitrite 10%, triethanolamine 10%, water 30%, formulated into a concentrate. The polyacrylamide in the medium is a thickener with a molecular weight of more than 1.5 million, sodium nitrite is a rust inhibitor, and triethanolamine is a preservative.
[Quenching Ridge Characteristics] At a temperature of 20 ° C, a solution medium containing 0.5% polyacrylamide has a maximum cooling rate of 275 ° C / s and a temperature of 340 ° C. The average cooling rate in the interval of 650 to 550 ° C was 140 ° C / s, and the average cooling rate in the interval of 300 to 200 ° C was 20 ° C / s. Its cooling performance is between water and oil.
[Main use] The high-frequency heating of 45, 40Cr and 18CrMnTi steel parts with 0.5%-0.7% polyacrylamide aqueous solution medium can reduce the deformation and cracking effect. The working temperature should be controlled between 20 and 40 °C.
053 sodium polyacrylate aqueous solution
[Introduction] Usually sodium acrylate and sodium methacrylate are mixed in a ratio of 1:1. It is a quenching medium that appeared in the 1980s.
The cooling curve of the medium is almost linear, the vapor film has a long phase time, the cooling rate is slow, and the heat dissipation is uniform. This is advantageous for non-Martens quenching and high hardenability, quenching and cracking steel workpieces. The effect of the fire can avoid decarburization and oxidation of the quenched surface. The mechanical properties of the heat-treated parts are the same as those of the quenching and tempering treatment, and also have good processing properties.
By eliminating the tempering process and simplifying the process, energy can be saved and costs can be reduced.
ã€The main purpose】
1 can be used for car forging quenching.
2 concentration (mass fraction) 5% to 10% solution can be used for quenching alloy steel.
310% to 20% of the solution can be used for quenching stainless steel.
415% to 25% solution can be used for high speed steel quenching.
5 can be used in place of oil bath, salt bath or lead bath for quenching of easily cracked workpieces.
054 sodium polyacrylate aqueous solution PAS-1
[Quenching and Cooling Characteristics] The cooling curve is almost linear, and the vapor film has a long phase. The cooling rate is slow and the heat dissipation is uniform. This is advantageous for non-Martens quenching and high hardenability, quenching and cracking steel workpieces, which can play a normalizing effect and avoid decarburization and oxidation of the quenching surface. The mechanical properties of heat-treated parts are the same as those of quenching and tempering. At the same time, it also has good processing performance. By eliminating the tempering process and simplifying the process, energy can be saved and costs can be reduced. The CP value is shown in Table 2-10.
ã€The main purpose】
1 The steel wire is treated with a sodium polyacrylate aqueous solution.
2 can be used instead of oil bath, salt bath or lead bath for quenching of easily cracked workpieces.
055 sodium polyacrylate aqueous solution PAS-3
[Introduction] Domestic PAS-3 water-soluble quenching medium, with polyacrylate as the main component. The mechanical properties of the heat-treated parts are the same as those of the quenching and tempering treatment, and also have good processing properties. By eliminating the tempering process and simplifying the process, energy can be saved and costs can be reduced. After quenching with PAS-3, the surface hardness and core hardness of the workpiece can meet the requirements, and the metallographic structure is the same as the quenching oil, which is all 4 grades. The fatigue test results are closer to the oil quenching of the N15 full loss system.
[Quenching and cooling characteristics] Same as 054.
ã€The main purpose】
1PAS-3 can be used for quenching and low temperature tempering of 20Cr steel after carburizing of tractor piston pin.
2 can be used instead of oil bath, salt bath or lead bath for quenching of easily cracked workpieces.
056 sodium polyacrylate aqueous solution TZQ
ã€Introduction】 Domestic TZQ organic water quenching medium, the main component of which is acrylic acid derivative polymer, the content (mass fraction) is 27%, in addition to the additive (mass fraction) 0.63%.
[Quenching and cooling characteristics] Same as 054.
The cooling performance of TZQ is different from that of PAS-3. The vapor film stage is short and the cooling rate in the high temperature area is fast, which is beneficial to the quenching of low hardenability steel.
ã€The main purpose】
1 can be used for car forging quenching.
2 concentration (mass fraction) 5% to 10% solution can be used for quenching alloy steel.
310% to 20% of the solution can be used for quenching stainless steel.
415% to 25% solution can be used for high speed steel quenching.
5 It can replace oil bath, salt bath or lead bath for quenching of easily cracked workpieces.
057 lignosulfonate
[Introduction] The quenching agent is non-toxic and low in cost (only l/160~l/240 of quenching oil). As its concentration increases, the resistance of the vapor film stage will be prolonged. The cooling rate will decrease. The lignosulfonate can be adsorbed on the metal surface to form a limb membrane, which significantly reduces the cooling rate.
The shortcoming of this medium is that it is prone to mold, which causes deterioration and decomposition, affects the quality of quenching, and has an unpleasant odor.
Quenching agent composition: It is the proposal of paper mill sulfite pulp waste liquid, usually used concentration (mass fraction) is 5% ~ 15%, the solution can be adjusted by adding sodium carbonate.
[Main use] It can replace the No. 20 oil and grade quenching, and replace the oil medium in the two-liquid quenching.
[Precautions for use]
1 It is a proposal for paper mill sulphite pulp waste liquid, usually used at a concentration of 5% to 15%, and sodium citrate can be added to the solution to adjust.
2 This product has a certain moisture absorption. The user should make moisture-proof packaging in time when using it. The ceramic and refractory materials should keep the environment dry before firing.
[Storage and transportation] When storing and transporting, it should be protected from rain and moisture. If there is agglomeration, it can be crushed and used without affecting the use effect.
058 (poly) ethylene glycol aqueous solution
[Introduction] When the liquid temperature rises, the cooling capacity of the 10% polyethylene glycol aqueous solution is lowered. However, when the liquid temperature is 30 to 40 °C, the cooling capacity remains unchanged, and the average speed in the temperature range of 450 to 250 °C Almost unaffected by liquid temperature. 10% polyethylene glycol and the same concentration of ethylene glycol aqueous solution have the same tendency to cool in the 450 to 250 °C interval.
[Main use] It can be used for overall direct quenching, forging residual heat quenching, etc.
059 polyalkenyl glycol aqueous solution
[Introduction] The glycol-based aqueous solution has good cooling performance, and the concentration and temperature of the solution are appropriately controlled to obtain an aqueous solution having the required cooling capacity.
For polyalkenyl glycol hydrazine solution containing (5% by mass) 5% to 10%, when the concentration is increased and the liquid temperature is raised, the cooling capacity can be lowered, and the concentration and liquid in the low temperature region of 450 to 250 ° C The effect of temperature is smaller. At 20 ° C liquid temperature, l0% UCON aqueous solution in the region of 750 ~ 450 ° C and 450 ~ 250 ° C, the average cooling rate and the rapid quenching oil is similar.
ã€The main purpose】
1 Suitable for heat treatment of steel and aluminum alloys.
2 Suitable for continuous mesh belt furnace, multi-purpose box furnace, pit furnace, trolley furnace, high frequency quenching or medium frequency quenching heat treatment.
3 carburizing, carbonitriding, quenching and tempering of the endothermic or exothermic furnace (intermittent and continuous operation).
060 Union Carbon UCON Quenchants A
[Introduction] UCON Quenchants A is a non-combustible polymer quenching liquid produced by Union Carbide, Inc., consisting of a liquid organic polymer and a corrosion inhibitor. The organic polymer is completely soluble in water to form a clear, homogeneous solution.
[Typical physical and chemical properties] The typical physical and chemical parameters are shown in Table 2-1-1.
ã€The main purpose】
1 Suitable for heat treatment of steel materials.
2 continuous mesh belt furnace, multi-purpose box furnace, pit furnace, trolley boring, high frequency quenching or medium frequency quenching heat treatment.
3 carburizing, carbonitriding, quenching and tempering of the endothermic or exothermic furnace (intermittent and continuous operation).
4 aluminum alloy forging, casting, solid solution, aging treatment.
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saving 25% of the polishing liquid, and the high-pressure system can completely penetrate the abrasive on the grinding wheel, which can save 25% of the waste caused by the rotation of the grinding wheel
The tool of automatic polishing wax spray, instead of manual waxing, can effectively improve the polishing efficiency, save labor and raw materials, and strengthen the polishing effect.
pressure tank,spray gun
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